利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

16 条记录 (耗时 0.018 秒)

    Line voltage fault detector for appliance protection
    1.
    发明授权
    Line voltage fault detector for appliance protection 失效
    线电压故障检测器，用于电器保护

    公开(公告)号：US4890002A

    公开(公告)日：1989-12-26

    申请号：US257951

    申请日：1988-10-14

    申请人： Louis W. Schornack

    发明人： Louis W. Schornack

    IPC分类号： H02J9/06

    CPC分类号： H02J9/062 ,  Y10T307/615 ,  Y10T307/625 ,  Y10T307/735

    摘要： A circuit breaker for the protection of electrical devices connected thereto provides immediate detection of power failure even if such failure occurs during the times of line voltage axis crossings. This is accomplished by providing and monitoring the amplitude of a synthesized waveform representing a full-wave rectified replica of the line voltage, combined with a 90.degree. phase-shifted full-wave rectified replica of the line voltage waveform. The composite waveform has a peak-to-peak excursion of approximately 20% about a DC average without nulls. The phase-shifted waveform replicas are produced by a phase shift network configured to provide a strong differentiating function, thereby causing the phase-shifted replicas to reflect virtually instantaneously failure of the power line voltage, and in particular failure in the vicinity of an axis crossing, by an immediate change in amplitude. Transient overvoltages and undervoltages are similarly reflected. Suitable comparators are used to detect excursions beyond preset limits to produce a control signal which is used to actuate the circuit breaker to a power-off condition.

    摘要翻译： 用于保护与其连接的电气设备的断路器即使在线路电压轴线交叉的时间期间发生这种故障也能立即检测到电力故障。 这是通过提供和监视代表线电压的全波整流副本的合成波形的振幅，并与线电压波形的90°相移全波整流副本组合。 复合波形对于没有空值的直流平均值的峰 - 峰偏移约为20％。 相移波形复制品由相移网络产生，该相移网络被配置为提供强的微分功能，从而导致相移副本反映电力线电压的虚拟瞬时故障，特别是在交叉轴线附近的故障 ，立即改变振幅。 瞬态过电压和欠电压也同样反映。 合适的比较器用于检测超出预设限制的偏移，以产生用于将断路器致动到断电状态的控制信号。

    Power supply and control circuit for series connected controller
    2.
    发明授权
    Power supply and control circuit for series connected controller 失效
    串联控制器电源和控制电路

    公开(公告)号：US4270058A

    公开(公告)日：1981-05-26

    申请号：US60578

    申请日：1979-07-25

    申请人： Louis W. Schornack

    发明人： Louis W. Schornack

    IPC分类号： H02M5/257 ,  H05B37/02

    CPC分类号： H02M5/2573 ,  Y10T307/944

    摘要： A control circuit for a power threshold switch, like a power triac, to be connected in series with a load device, at a situs where only one AC power conductor and a conductor extending to the load device is available, is energized from a DC power supply energized from these conductors. The power supply includes a rectifier connected in series with an energy storage means, such as a capacitor, the terminals of which constitute the DC output terminal of the DC power supply, an impedance of much greater resistance than that of the load device and through which the capacitor is charged when the triac is in its non-conductive mode, and preferably a low power control triac shunting the high impedance and triggered momentarily into conduction each half cycle as the applied AC voltage goes through zero when the power triac is to be in its conductive mode, to effect charging of said energy storage means and subsequently the triggering of said power threshold switch into conduction.

    摘要翻译： 用于功率阈值开关的控制电路，例如电力三端双向可控硅开关，与负载装置串联连接，在只有一个交流电源导体和延伸到负载装置的导体可用的位置处由直流电源 从这些导体供电。 电源包括与诸如电容器的能量存储装置串联的整流器，其电容器构成DC电源的DC输出端子，阻抗比负载装置的阻抗大得多，并且通过该电容器 当三端双向晶闸管处于非导通模式时，电容器被充电，并且优选地，低功率控制三端双向可控硅开关器分流高阻抗并瞬时触发每半个周期的导通，当施加的AC电压在电力三端双向可控硅开关 其导电模式，以实现所述能量存储装置的充电，并随后触发所述功率阈值开关导通。

    Load protection circuit
    3.
    发明授权
    Load protection circuit 失效
    负载保护电路

    公开(公告)号：US5055703A

    公开(公告)日：1991-10-08

    申请号：US479261

    申请日：1990-02-13

    申请人： Louis W. Schornack

    发明人： Louis W. Schornack

    IPC分类号： H02J9/06

    CPC分类号： H02J9/062 ,  Y10T307/615 ,  Y10T307/625 ,  Y10T307/735

    摘要： A battery operated standby inverter power supply uses an electromechanical relay switching network to connect and disconnect line power between input and output terminals. An overcurrent relay pulser rapidly opens the switching system relay contacts upon transition to battery mode, and a breakover diode network accelerates field collapse in the relay coil attendant to reversion of the relay to its normally closed condition attendant to each battery to line transition. A fault detector establishes acceptable line voltage thresholds, the exceeding of either of which triggers operation from line to battery mode. These triggering thresholds are automatically pulled closer together during initial system startup. During system startup and attendant to each battery-to-line transition, the fault detector is momentarily latched to indicate acceptable line voltage conditions, thereby removing its susceptibility to transient retriggering. During start-up mode a low-current transformerless power supply connected to the power line input terminals charges a storage capacitor sufficiently to power the fault detector through a single interrogation cycle, to actuate the switching circuitry to line mode operation if proper line voltage conditions are sensed. Collapse of this capacitor voltage during this operation terminates the interrogation cycle, a new cycle begins when the capacitor has been suitably charged. An overload detector senses the load current in line mode and prevents actuation to battery mode if the load connected to the power supply output exceeds the rated current value of the inverter.

    摘要翻译： 电池待机逆变电源使用机电继电器切换网络连接和断开输入和输出端子之间的电源。 过电流继电器脉冲发生器在转换到电池模式时快速打开开关系统继电器触点，并且断路二极管网络加速继电器线圈中的场崩溃，使继电器恢复到其每个电池的常闭状态以进行线路转换。 故障检测器建立可接受的线路电压阈值，其中任何一个的超过触发从线路到电池模式的操作。 在初始系统启动期间，这些触发阈值将自动拉近。 在系统启动过程中，伴随着每个电池到线路的转换，故障检测器被瞬间锁存以指示可接受的线路电压条件，从而消除其对瞬时重新触发的敏感性。 在启动模式下，连接到电源线输入端子的低电流无变压器电源充分充电储能电容器，以便通过单个询问周期为故障检测器供电，以便在适当的电源电压条件下将开关电路驱动至线路模式运行 感觉到。 在该操作期间，该电容器电压的折叠终止了询问周期，当电容器已经被适当地充电时，新的周期开始。 负载检测器在线路模式下检测负载电流，如果连接到电源输出的负载超过变频器的额定电流值，则可以防止启动电池模式。

    Power circuit control programmable timer
    7.
    发明授权
    Power circuit control programmable timer 失效
    电源电路控制可编程定时器

    公开(公告)号：US4344000A

    公开(公告)日：1982-08-10

    申请号：US132088

    申请日：1980-03-20

    申请人： Louis W. Schornack ,  Richard Goldstein

    发明人： Louis W. Schornack ,  Richard Goldstein

    IPC分类号： G04G15/00 ,  G08B1/00 ,  H01H43/00 ,  H01H43/04 ,  H05B37/02

    CPC分类号： H05B37/0281 ,  G04G15/006 ,  Y02B20/42 ,  Y10T307/878 ,  Y10T307/944 ,  Y10T307/951

    摘要： One form of the timer is designed to be mounted over and behind a conventional wall switch cover plate and includes a two position timer condition-setting arm, a rotatable and depressible time setting dial knob and an indicator on the front of the cover plate. When the arm is moved to a timer-on position, the indicator flashes to indicate that timer programming is needed. This may be achieved in real time over the first twenty-four hours after a 30 minute play period by depressing the knob acting as an on and off power switch control push button to turn the light circuit on and off in a normal manner. Fast normal programming is achieved by rotating the knob to various time settings and depressing the knob to set ON or OFF markers in timer memory. A full twenty-four hour programming is completed by either completing a full rotation of the knob over the full twenty-four hour time settings, with at least one ON and one OFF depression, or by a similar pair of knob depressions without such a full rotation, OFF markers then being automatically set by the timer to complete the timer programming. The indicator comes steady-on to indicate that the timer is fully programmed and in an automatic mode of operation. The automatic operation is temporarily overridden by depression of the knob or permanently overridden by a simple distinctive speed or time duration depression of the knob.

    摘要翻译： 定时器的一种形式被设计成安装在传统的墙壁开关盖板之上和之后，并且包括两个位置定时器状态设置臂，可旋转和可按下的时间设置拨盘旋钮以及盖板前部的指示器。 当手臂移动到定时器开启位置时，指示灯闪烁，表示需要定时器编程。 这可以通过按下作为开关电源开关控制按钮的旋钮在30分钟的播放时间之后的前二十四小时内实时实现，以正常方式打开或关闭照明电路。 通过将旋钮旋转到各种时间设置并按住旋钮在定时器存储器中设置ON或OFF标记来实现快速正常编程。 完整的二十四小时编程完成了在整个二十四小时的时间设置完成旋钮的旋转，至少有一个ON和一个OFF按钮，或者通过相似的一对旋钮凹陷，没有这样一个完整的 旋转，OFF标记，然后由定时器自动设置，以完成定时器编程。 指示灯亮起，表示定时器已完全编程并处于自动运行模式。 自动操作暂时被按住旋钮所覆盖，或者永久地被旋钮简单的不同速度或持续时间的按压所覆盖。

    Standby power supply
    10.
    发明授权
    Standby power supply 失效
    待机电源

    公开(公告)号：US4956563A

    公开(公告)日：1990-09-11

    申请号：US118789

    申请日：1987-11-09

    申请人： Louis W. Schornack

    发明人： Louis W. Schornack

    IPC分类号： H02J9/06

    CPC分类号： H02J9/062 ,  Y10T307/625 ,  Y10T307/729 ,  Y10T307/735

    摘要： A battery operated standby inverter power supply uses an electromechanical relay switching network to connect and disconnect line power between input and output terminals. An overcurrent relay pulser rapidly opens the switching system relay contacts upon transition to battery mode, and a breakover diode network accelerates field collapse in the relay coil attendant to reversion of the relay to its normally closed condition attendant to each battery to line transition. A fault detector establishes acceptable line voltage thresholds, the exceeding of either of which triggers operation from line to battery mode. These triggering thresholds are automatically pulled closer together during initial system startup. An overload detector senses the load current in line mode and prevents actuation to battery mode if the load connected to the power supply output exceeds the rated current value of the inverter. A wiring detector prevents initial power-up to line mode in the event that the house wiring has been miswired so as to interchange the house ground and the voltage return lines.